Wolf Tooth Premium Headset - IS41/28.6 Upper, 7mm Stack, Ultraviolet Purple 12"-24" Rims - Chain fits 1/8" fixed-gear

- Chain fits 1/8" fixed-gear sprockets

Manufacturer Part Number: FCHALRAK

and Campagnolo 16-notch external bearing bottom bracket cups

Manufacturer Part Number: BP-07 - 633090196850

Wolf Tooth Premium Headset - IS41/28.6 Upper, 7mm Stack, Ultraviolet Purple 12"-24" Rims - Chain fits 1/8" fixed-gearWolf Tooth Premium headsets are machined out of aircraft grade aluminum and feature high end bearings made by Enduro. They are engineered to use the largest possible ball size and are filled with high pressure waterproof lubricant. A pair of dual lip seals ride in micro grooves to keep out water and debris. Stainless steel bearings provide unparalleled corrosion resistance Highly recommended if your headset will be exposed to wet conditions or sweat